wehub-resource-sync
86 lines
2.9 KiB
C#
86 lines
2.9 KiB
C#
using T3.Core.Utils;
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using T3.Core.Utils.Geometry;
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namespace Lib.flow.context;
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[Guid("b7731197-b922-4ed8-8e22-bc7596c64f6c")]
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internal sealed class GetPosition : Instance<GetPosition>
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{
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[Output(Guid = "C809C405-81D3-44CA-A39C-C8DFA6AB3205")]
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public readonly Slot<Command> UpdateCommand = new();
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[Output(Guid = "BB81C71D-9E19-4371-8995-BD61AE426A16")]
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public readonly Slot<Vector3> Position = new();
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[Output(Guid = "ACE050AC-8E49-409A-A194-4CB3192148CA")]
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public readonly Slot<Vector3> Scale = new();
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[Output(Guid = "751E97DE-C418-48C7-823E-D4660073A559")]
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public readonly Slot<Vector4[]> ObjectToWorld = new();
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public GetPosition()
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{
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UpdateCommand.UpdateAction += Update;
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Position.UpdateAction += UpdateReturnResults;
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Scale.UpdateAction += UpdateReturnResults;
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ObjectToWorld.UpdateAction += UpdateReturnResults;
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}
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private void UpdateReturnResults(EvaluationContext context)
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{
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Position.Value = _lastPosition;
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Scale.Value = _lastScale;
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ObjectToWorld.Value = _matrix;
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}
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private void Update(EvaluationContext context)
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{
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var space = Space.GetEnumValue<Spaces>(context);
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var matrix = space switch
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{
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Spaces.WorldSpace => context.ObjectToWorld,
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Spaces.CameraSpace => context.WorldToCamera * context.ObjectToWorld,
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Spaces.ClipSpace => context.CameraToClipSpace * context.WorldToCamera * context.ObjectToWorld,
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_ => context.ObjectToWorld
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};
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var offset = PositionOffset.GetValue(context);
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var p = new Vector4(offset.X, offset.Y, offset.Z, 1);
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var pInSpace = Vector4.Transform(p, matrix);
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var newPosition = new Vector3(pInSpace.X, pInSpace.Y, pInSpace.Z);
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var changed = Vector3.Distance(_lastPosition, newPosition) > 0.00001f;
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if(changed)
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{
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_lastPosition = newPosition;
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Position.DirtyFlag.ForceInvalidate();
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}
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var s = new Vector4(1, 1, 1, 0);
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var sInWorld = Vector4.Transform(s, matrix);
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_lastScale = new Vector3(sInWorld.X, sInWorld.Y, sInWorld.Z);
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_matrix[0] = matrix.Row1();
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_matrix[1] = matrix.Row2();
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_matrix[2] = matrix.Row3();
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_matrix[3] = matrix.Row4();
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}
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private readonly Vector4[] _matrix = new Vector4[4];
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private Vector3 _lastPosition;
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private Vector3 _lastScale;
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private enum Spaces
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{
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WorldSpace,
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CameraSpace,
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ClipSpace,
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}
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[Input(Guid = "045AD01F-DD04-43D0-8193-5CB4C25ADD9B", MappedType = typeof(Spaces))]
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public readonly InputSlot<int> Space = new();
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[Input(Guid = "D55285F7-9EF9-461B-AC4C-50B80872D397", MappedType = typeof(Spaces))]
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public readonly InputSlot<Vector3> PositionOffset = new();
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} |